Unit8 Our Blue Planet 知识点总结及相关练习2024-2025学年仁爱科普版英语七年级下册

仁爱科普版七年级下册 Unit8 Our Blue Planet 知识点总结 一、重点单词 1. ocean:n. 海洋,如:The Pacific Ocean(太平洋)是世界上最大的海洋之一。 2. fall:n. 瀑布(美);v. 落下,降落。常见搭配:Niagara Falls(尼亚加拉瀑布);Leaves fall in autumn.(秋天树叶落下。) 3. river:n. 河,江。如:The Nile River(尼罗河)是世界上最长的河流之一。 4. lake:n. 湖。例如:Lake Baikal(贝加尔湖)是世界上最深的淡水湖。 5. sea:n. 海,海洋。如:The Bohai Sea(渤海)是中国的内海。 6. freshwater:adj. 淡水的 。a freshwater lake(淡水湖)。 7. form:v. 形成;组成。Water forms clouds.(水形成云。) 8. drop:n. 滴;水珠 。Save every drop of water.(节约每一滴水。) 9. cycle:n. 循环;周期 。the water cycle(水循环)。 10. reuse:v. 再利用;重新使用。Reuse water to save resources.(再利用水以节约资源。) 11. seldom:adv. 很少;不常 。They seldom plant flowers.(他们很少种花。) 12. underground:n. 地下;adj. 地下的。Most people get water from the underground.(大多数人从地下获取水。) 13. dig:v. 挖;掘 。They have to dig wells.(他们不得不挖井。) 14. valuable:adj. 宝贵的;有价值的。Water is valuable.(水是宝贵的。) 15. imperative:adj. 祈使的;紧急的 。imperative sentences(祈使句)。 二、重点短语 1. run through:流经;贯穿。The Nile River runs through eastern Africa.(尼罗河贯穿东非。) 2. go up:上升;上涨。Water goes up into the sky.(水上升到天空中。) 3. turn into:变成;转变为。Water turns into clouds.(水变成云。) 4. make up:组成;编造;化妆 。Make up a new conversation.(编造一个新对话。) 5. make full use of:充分利用 。People have to make full use of water.(人们必须充分利用水。) 6. fill in:填写 。Fill in the blanks.(填空。) 7. turn off:关掉(水龙头、电器等)。Turn off the tap when you brush your teeth.(刷牙时关掉水龙头。) 8. collect rainwater:收集雨水 。Collect rainwater for later use.(收集雨水以备后用。) 9. reuse water:再利用水 。We should reuse water.(我们应该再利用水。) 10. provide sth. for sb.:为某人提供某物 。Forests provide home for plants and animals.(森林为动植物提供家园。) 三、重点句型 1. It is + 数词 + 单位词 + 形容词(如 long, wide, high 等):表示长度、宽度、高度等。It is 6,671 kilometers long.(它长 6671 千米。) 2. As we all know, …:正如我们都知道的,……。As we all know, water is very important to us.(正如我们都知道的,水对我们非常重要。) 3. That's right.:没错;就是那样。用于表示对对方观点的认同。 - We also need to use a lot of water in our life. - That's right.(- 我们在生活中也需要使用大量的水。 - 没错。) 4. It's lucky that …:很幸运…… 。It's lucky that we have a lot of water on the earth.(很幸运地球上有大量的水。) 5. Let's do sth.:让我们做某事吧。表示提议。Let's save every drop of water.(让我们节约每一滴水吧。) 6. All living things need water.:所有生物都需要水。阐述普遍事实。 7. Water is very useful. At home, we use water to … Outside home, we can …:用于描述水的用途。Water is very useful. At home, we use water to cook. Outside home, we can travel by water.(水非常有用。在家里,我们用水做饭。在户外,我们可以水路出行。) 8. Do you know the water cycle? Water in the air gets cold, makes clouds and then forms water drops. The drops fall and it rains. Rainwater goes into rivers, lakes and oceans. When it is sunny, water goes up into the sky, forms clouds and then it rains again.:描述水循环过程。 四、重点语法 (一)祈使句 1. 定义:祈使句是用来表示请求、命令、建议、叮嘱等的句子,主语通常省略,谓语动词用原形。 2. 肯定形式:以动词原形开头。如:Turn off the tap when you brush your teeth.(刷牙时关掉水龙头。)Take a quick shower.(快速洗个澡。) 3. 否定形式:在动词原形前加 Don't。如:Don't keep the water running while brushing your teeth.(刷牙时不要让水一直流。)Don't litter!(不要乱扔垃圾!) 4. 用法:在日常生活中,用于提出建议、发出指令、提出警告等场景,在环保主题中,常用来表达节约用水、保护地球等方面的要求。 (二)现在分词作伴随状语(部分涉及) 在描述动作时,有时会用现在分词形式来表示与主句动作同时发生的伴随动作。如:During the shower, they must collect the water, reusing it after the shower.(洗澡时,他们必须收集水,洗完澡后再利用这些水。)这里 “reusing it after the shower” 就是现在分词短语作伴随状语,表示在收集水之后紧接着的再利用水的动作。 五、练习 (一)单词拼写 1. The o_ covers a large part of the earth.(ocean) 2. The f_ in Canada is very famous.(fall) 3. We should save every d_ of water.(drop) 4. The water c_ is an important natural process.(cycle) 5. People in the desert s_ plant flowers.(seldom) (二)短语填空 1. We should _(充分利用)our time to study. 2. Remember to _(关掉)the lights when you leave the room. 3. Water can _(变成)ice when it's cold enough. 4. The river _(流经)our city. 5. Let's _(编造)a story about water. (三)句型转换 1. We can use water to cook.(对划线部分提问) _ can we use water _ _? 2. It's 99 - meter - high.(对划线部分提问) _ _ is it? 3. Water is important to us.(改为感叹句) _ _ water is to us! 4. Let's save water.(改为反意疑问句) Let's save water, _ _? 5. They reuse water.(改为被动语态) Water _ _ by them. (四)语法填空 1. _(not waste)water. It's precious. 2. Water in the air gets cold and _(form)clouds. 3. People in the desert have to spend a lot of money _(dig)wells. 4. The river runs through the city, _(provide)water for people. 5. It's lucky that we _(have)enough water to use. (五)阅读理解 阅读短文,根据短文内容选择正确答案。 Water is very important to us. We drink it every day and use it to cook and wash things. Without water, we can't live. But some people don't save water. They often keep the water running while brushing their teeth or washing their faces. Some people even throw rubbish into rivers. This makes the water dirty. We should save water. For example, we can turn off the tap after using water. We can also reuse water. We can use the water from washing clothes to clean the floor. 1. Why is water important to us? A. Because we can play with it. B. Because we drink it and use it in daily life. C. Because it makes the earth beautiful. 2. What do some people do with water? A. They save it. B. They waste it and make it dirty. C. They recycle it. 3. What should we do to save water? A. Keep the water running. B. Throw rubbish into rivers. C. Turn off the tap after using water. 4. What can we use the water from washing clothes to do? A. Drink. B. Clean the floor. C. Wash our faces. 5. What's the best title for the passage? A. Water Is Important B. Save Water C. Water Pollution (六)写作 以 “Saving Water” 为题,写一篇短文,介绍水的重要性以及如何节约用水,不少于 60 词。 参考范文: Saving Water Water is very important to all living things. We drink water every day. We also use water to cook, wash clothes and clean the house. Without water, we can't live. However, some people don't save water. They often waste water. We should save water. For example, we can turn off the tap when we brush our teeth. We can collect rainwater for later use. We can reuse the water from washing. Let's save every drop of water and protect our blue planet. 六、练习答案 (一)单词拼写 1. ocean 2. fall 3. drop 4. cycle 5. seldom (二)短语填空 1. make full use of 2. turn off 3. turn into 4. runs through 5. make up (三)句型转换 1. What; to do 2. How high 3. How important 4. shall we 5. is reused (四)语法填空 1. Don't waste 2. forms 3. digging 4. providing 5. have (五)阅读理解 BBCBB 学科网(北京)股份有限公司 $$